Home / 478,336,236.50-660,104,001.05-258,319,662.50

Finding the Fourth Proportional to 478,336,236.50, 660,104,001.05 and 258,319,662.50

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Solution

The fourth proportional to 478,336,236.50, 660,104,001.05 and 258,319,662.50 is: 356,481,131.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,336,236.50 : 660,104,001.05 = 258,319,662.50 : x
  2. Step 2: Convert to fraction form
    478,336,236.50/660,104,001.05 = 258,319,662.50/x
  3. Step 3: Cross multiply
    478,336,236.50x = 660,104,001.05 × 258,319,662.50
  4. Step 4: Simplify right side
    478,336,236.50x = 170,517,842,766,494,304
  5. Step 5: Solve for x
    x = 170,517,842,766,494,304/478,336,236.50
  6. Step 6: Final answer
    x = 356,481,131.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.